4p^2+3p-18=0

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Solution for 4p^2+3p-18=0 equation:


Simplifying
4p2 + 3p + -18 = 0

Reorder the terms:
-18 + 3p + 4p2 = 0

Solving
-18 + 3p + 4p2 = 0

Solving for variable 'p'.

Begin completing the square.  Divide all terms by
4 the coefficient of the squared term: 

Divide each side by '4'.
-4.5 + 0.75p + p2 = 0

Move the constant term to the right:

Add '4.5' to each side of the equation.
-4.5 + 0.75p + 4.5 + p2 = 0 + 4.5

Reorder the terms:
-4.5 + 4.5 + 0.75p + p2 = 0 + 4.5

Combine like terms: -4.5 + 4.5 = 0.0
0.0 + 0.75p + p2 = 0 + 4.5
0.75p + p2 = 0 + 4.5

Combine like terms: 0 + 4.5 = 4.5
0.75p + p2 = 4.5

The p term is 0.75p.  Take half its coefficient (0.375).
Square it (0.140625) and add it to both sides.

Add '0.140625' to each side of the equation.
0.75p + 0.140625 + p2 = 4.5 + 0.140625

Reorder the terms:
0.140625 + 0.75p + p2 = 4.5 + 0.140625

Combine like terms: 4.5 + 0.140625 = 4.640625
0.140625 + 0.75p + p2 = 4.640625

Factor a perfect square on the left side:
(p + 0.375)(p + 0.375) = 4.640625

Calculate the square root of the right side: 2.154210992

Break this problem into two subproblems by setting 
(p + 0.375) equal to 2.154210992 and -2.154210992.

Subproblem 1

p + 0.375 = 2.154210992 Simplifying p + 0.375 = 2.154210992 Reorder the terms: 0.375 + p = 2.154210992 Solving 0.375 + p = 2.154210992 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-0.375' to each side of the equation. 0.375 + -0.375 + p = 2.154210992 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + p = 2.154210992 + -0.375 p = 2.154210992 + -0.375 Combine like terms: 2.154210992 + -0.375 = 1.779210992 p = 1.779210992 Simplifying p = 1.779210992

Subproblem 2

p + 0.375 = -2.154210992 Simplifying p + 0.375 = -2.154210992 Reorder the terms: 0.375 + p = -2.154210992 Solving 0.375 + p = -2.154210992 Solving for variable 'p'. Move all terms containing p to the left, all other terms to the right. Add '-0.375' to each side of the equation. 0.375 + -0.375 + p = -2.154210992 + -0.375 Combine like terms: 0.375 + -0.375 = 0.000 0.000 + p = -2.154210992 + -0.375 p = -2.154210992 + -0.375 Combine like terms: -2.154210992 + -0.375 = -2.529210992 p = -2.529210992 Simplifying p = -2.529210992

Solution

The solution to the problem is based on the solutions from the subproblems. p = {1.779210992, -2.529210992}

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